Debt management

Refinance Calculator

Compare your current loan with a new one to see how much you save each month, when the costs pay back and the lifetime saving.

  • Free
  • No sign-up
  • Updated for 2026

Current vs new loan

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Enter your current and new loan details to see the savings.

Worked example

With these example inputs:

  • Loan balance$250,000
  • Current rate8%
  • Years left25 yr
  • New rate6%
  • New term25 yr
  • Refinance costs$3,000

Monthly savings: $319

  • New payment$1,611
  • Current payment$1,930
  • Break-even10 mo
  • Lifetime savings$92,636

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What this refinance calculator does

This calculator finds your monthly savings from a refinance. You enter your balance, old terms, and new terms. The tool then shows the savings in your chosen currency. It also weighs the closing costs. This is a key mortgage tool. You can run a few what-ifs. The result helps you decide.

What refinancing is

Refinancing means replacing a loan with a new one. The new loan pays off the old. It often carries a lower rate. It can also have a new term. So your monthly payment can drop. People do it to save money. It is shown in your currency.

How it is calculated

The tool finds your old payment first. It uses your balance, old rate, and old term. It then finds your new payment the same way. The monthly savings is the gap between them. Closing costs feed the break-even. The calculator takes care of this for you.

What the result tells you

The result shows your monthly savings. A balance at eight percent moved to six percent saves a few hundred a month. A bigger rate drop saves more. A longer new term lowers the payment too. So it shows what you keep each month. It is a clear monthly figure.

The break-even point

A refinance often has upfront costs. The break-even shows when you recover them. It divides the costs by the monthly savings. The answer is a number of months. So you see how long to stay. Past that point you are ahead. It is a key test of a refinance.

Lifetime savings

The tool also shows your lifetime savings. It compares the total of each loan. The new total includes the closing costs. A lower rate can save a lot overall. But a longer term can erode that. So check the full picture, not just the month. The lifetime number tells the deeper story.

When refinancing makes sense

A refinance shines when rates fall. A big enough drop covers the costs. It also helps if you plan to stay. A short stay may not break even. A better credit score can unlock a lower rate. So weigh the savings against the costs. Time it when the math works.

How to use it

Enter your balance first. Add your old rate and term. Add the new rate, term, and costs. Read your monthly savings in your chosen currency. Then try different figures. Compare a few rates. Use it to decide.

The limits of this calculator

This tool has clear limits. It assumes a fixed rate for each term. It uses one figure for closing costs. Real costs can vary by lender. It ignores any penalty on the old loan. So treat it as an approximation. So read the result with a clear head.

Common mistakes to avoid

A common mistake is ignoring the closing costs. A lower payment can still cost upfront. Another is stretching the term too far. That can erase the lifetime savings. Some skip the break-even point. Others forget penalties on the old loan. Clear math helps you steer around them.

A final tip

Use this to weigh a refinance. Remember to check the break-even point. Look at the lifetime savings, not just the month. Factor in all the closing costs. Refinance when the rate truly drops. Do not stretch the term too far. A second look sharpens your view.

Frequently asked questions

What is the break-even point?

It is how long the monthly saving takes to cover the refinance costs. After that point you are ahead. Before it, you have not yet recovered the costs.

Can refinancing cost more overall?

Yes. A lower rate on a longer term can lower the monthly payment but raise the total interest, so check the lifetime saving, not just the monthly figure.

What fees come with refinancing?

Closing costs, appraisal and origination fees, which you weigh against the monthly savings.

Should I refinance to a shorter term?

It can save a lot of interest, though the monthly payment usually rises.

How much lower should the new rate be?

There is no fixed rule, so compare the savings against the costs using the break-even point.